/*
 * Copyright © 2015-2018 Aeneas Rekkas <aeneas+oss@aeneas.io>
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 * @author		Aeneas Rekkas <aeneas+oss@aeneas.io>
 * @copyright 	2015-2018 Aeneas Rekkas <aeneas+oss@aeneas.io>
 * @license 	Apache-2.0
 *
 */

package fosite_test

import (
	"context"
	"testing"

	"github.com/golang/mock/gomock"
	"github.com/pkg/errors"
	"github.com/stretchr/testify/assert"

	"github.com/ory/fosite"
	. "github.com/ory/fosite"
	. "github.com/ory/fosite/internal"
)

func TestNewAuthorizeResponse(t *testing.T) {
	ctrl := gomock.NewController(t)
	handlers := []*MockAuthorizeEndpointHandler{NewMockAuthorizeEndpointHandler(ctrl)}
	ar := NewMockAuthorizeRequester(ctrl)
	defer ctrl.Finish()

	ctx := context.Background()
	oauth2 := &Fosite{
		AuthorizeEndpointHandlers: AuthorizeEndpointHandlers{handlers[0]},
	}
	duo := &Fosite{
		AuthorizeEndpointHandlers: AuthorizeEndpointHandlers{handlers[0], handlers[0]},
	}
	ar.EXPECT().SetSession(gomock.Eq(new(DefaultSession))).AnyTimes()
	fooErr := errors.New("foo")
	for k, c := range []struct {
		isErr     bool
		mock      func()
		expectErr error
	}{
		{
			mock: func() {
				handlers[0].EXPECT().HandleAuthorizeEndpointRequest(gomock.Any(), gomock.Any(), gomock.Any()).Return(fooErr)
			},
			isErr:     true,
			expectErr: fooErr,
		},
		{
			mock: func() {
				handlers[0].EXPECT().HandleAuthorizeEndpointRequest(gomock.Any(), gomock.Any(), gomock.Any()).Return(nil)
				ar.EXPECT().DidHandleAllResponseTypes().Return(true)
				ar.EXPECT().GetDefaultResponseMode().Return(ResponseModeFragment)
				ar.EXPECT().GetResponseMode().Return(ResponseModeDefault)
			},
			isErr: false,
		},
		{
			mock: func() {
				oauth2 = duo
				handlers[0].EXPECT().HandleAuthorizeEndpointRequest(gomock.Any(), gomock.Any(), gomock.Any()).Return(nil)
				handlers[0].EXPECT().HandleAuthorizeEndpointRequest(gomock.Any(), gomock.Any(), gomock.Any()).Return(nil)
				ar.EXPECT().DidHandleAllResponseTypes().Return(true)
				ar.EXPECT().GetDefaultResponseMode().Return(ResponseModeFragment)
				ar.EXPECT().GetResponseMode().Return(ResponseModeDefault)
			},
			isErr: false,
		},
		{
			mock: func() {
				oauth2 = duo
				handlers[0].EXPECT().HandleAuthorizeEndpointRequest(gomock.Any(), gomock.Any(), gomock.Any()).Return(nil)
				handlers[0].EXPECT().HandleAuthorizeEndpointRequest(gomock.Any(), gomock.Any(), gomock.Any()).Return(fooErr)
			},
			isErr:     true,
			expectErr: fooErr,
		},
		{
			mock: func() {
				oauth2 = duo
				handlers[0].EXPECT().HandleAuthorizeEndpointRequest(gomock.Any(), gomock.Any(), gomock.Any()).Return(nil)
				handlers[0].EXPECT().HandleAuthorizeEndpointRequest(gomock.Any(), gomock.Any(), gomock.Any()).Return(nil)
				ar.EXPECT().DidHandleAllResponseTypes().Return(true)
				ar.EXPECT().GetDefaultResponseMode().Return(ResponseModeFragment)
				ar.EXPECT().GetResponseMode().Return(ResponseModeQuery).Times(2)
				ar.EXPECT().GetResponseTypes().Return([]string{"token", "code"})
			},
			isErr:     true,
			expectErr: ErrUnsupportedResponseMode.WithHintf("Insecure response_mode '%s' for the response_type '%s'.", ResponseModeQuery, fosite.Arguments{"token", "code"}),
		},
	} {
		c.mock()
		responder, err := oauth2.NewAuthorizeResponse(ctx, ar, new(DefaultSession))
		assert.Equal(t, c.isErr, err != nil, "%d: %s", k, err)
		if err != nil {
			assert.Equal(t, c.expectErr, err, "%d: %s", k, err)
			assert.Nil(t, responder, "%d", k)
		} else {
			assert.NotNil(t, responder, "%d", k)
		}
		t.Logf("Passed test case %d", k)
	}
}